-rich for learners of EnglishPowered by COBUILD (-rɪtʃ)
combining form in graded adjective & combining form [usu ADJ n]
-richcombines with the names of useful or valuable substances to form adjectives that describe something as containing a lot of a particular substance. ⇒ ...Angola's northern oil-rich coastline. ⇒ It would be wise to include plenty of mineral rich foods in your diet.